The position of a particle moving along the x-axis is given by s(t)=7t^2+33. Use difference quotients to find the velocity v(t) and acceleration a(t).
My textbook says v(t)=s'(t) and a(t)=s''(t). I think I got the answer, but not sure if the velocity should have an x in it. Please reply and let me know.
The Attempt at a Solution